Cadillac Audio, Video and Security Systems Discussion, Some navigation questions in Item Specific Cadillac Discussion; the AVC used the onstar mic built into the overhead on Sevs/Devs
Eldos dont have it...
Well I like my car dead quiet (and also ), so no worries about the exhaust, but I do find the wind noise overwhelming at 60MPH and up. Currently I have to adjust the volume by hand . Every morning when I go to the car I am just awaked by the loud volume left UP from my last night trip. Well it does wake me up (although now is also cold outside so no need) but since is a Cadillac I like to do al the adjustments for me.
Ok so the NAV unit has arrived… YAHOOO!
Appears new (all stickers in the right place no scratches). Obviously first thing I tried to do was to bench test-it. So I connected the power and doesn’t turn on. The buttons lights turn ON for about 7-10 seconds and the fan in the back is spinning, but other than that nothing (no response to any button). After the 7-10 seconds the lights turn off and the fan too. I tried to connect the RIM (data wires + power) and tried to fire it up. The RIM does send power to the amp relays wire (I even connected a relay and it works) but it does that as long as it has power. The NAV unit behaves the same (with or without RIM). The ‘99 CD/TAPE/Radio behaves in a almost similar manner except that does not turns the lights on (expectable since the lights are hard wired not data bus controlled) and does not respond to any button (except CD eject, and pull the CD if inserted, plus displays 00:00 time 5 seconds after I press the DSP button). Now the ’99 HU suppose to have a VIN in the memory (since it was pulled from a car).
Anybody tried to bench test the NAV unit? Keep in mind the unit supposes to be brand new never installed in the car (thus blank VIN in the memory).
J did you connected the power (only) to some NAV unit (like bench test only) and you got different results (with or without a blank VIN)?
I also noticed my power supply under load supplies about 9.9V, could that be to low (I would say not realy)?
nah im just messing with you
because these units are part of the data class it uses a signal sense from them
only way to test it is to plug it into a working car
if you plug it into yours it should boot up fine
Ok connected the power one more time definitely tries to do something, I can hear something on the Chime wires (with headphones attached ). Is not a chime is just white noise (very low) and above the noise with a 1-2 sec frequency I can hear some slightly louder noise (that seems to be like a skipping CD). Is either a digital signal (God I hope not) or the harmonics induced by some electrical device (say a motor that starts and stops, or any kind of power fluctuation, although the current is pretty constant @ ~1.3 Amp). I certainly hope the chime is not a digital signal because the RIM expects an analog sound signal. It is strange because the 2002(3) wire diagram describes the chime wires as “Chime module BIT1 signal”and “Chime Module BIT2 signal”. Although the wires are shielded (thus I am kind of expecting to an analog signal).
Anyway I am dying to see the unit booting up so I will temporarily connect to the car probably this weekend, forget about the whether, I am willing to dip in snow (and that will probably be one of the last things I will do) just to se the unit booting up.
Ok so this afternoon I just put the unit in the car (connected power F1 & E16 and data F6 & E6 only) and unfortunately does not start. Same story, all the lights are on but this time stay on as long as the car supplies power to the harness. Other than that I had no reaction to any button.
The good-ish news is that it throws error codes on the IPC:
B2462 - GPS Signal Error
B2463 - Navigation CD Player - No Disk
B2475 - Navigation Display Head (NDH) Auxiliary Input Malfunction
While the first two codes are pretty normal (since the unit has no GPS antenna and disk of any kind) the third one is a big mystery (what Auxiliary input, I had nothing connected in there).
So the big question is (the $1000 question):
How does the unit behave when is blocked (I mean has a different VIN in the memory), no screen display no tilt no nothing?
I mean I certainly hope is blocked, it will only cost me around $100 + taxes otherwise is an almost $938 CND lost. The add was clearly stating: “There is no code stored it this unit so it will not need to be unlocked by a dealer.”
The unit part number is 25755259. J, anybody had experience on this matter?
Let me put it this way:
From the moment you connected the NAV unit in the car until the moment you arrive to the dealership to have the VIN relearned how was the unit behaving? Did you have any response from any button? Did the screen turned on displaying something (anything)?